1996

7.7

1969

7.8

2000

8.2

2005

7.0

1995

8.6

2018

8.1

1990

6.9

2013

8.4

1986

8.3

2017

7.6

1979

7.7

2024

8.8

2003

8.3

2019

8.5

2010

8.1

2018

8.2

2015

6.9

2020

8.6

2012

8.4

2018

7.6